Conversion of Ethyne to 1,2-dibromoethane

Explanation

To convert ethyne (C2H2) to 1,2-dibromoethane (C2H4Br2), we can follow these steps:

### Step 1: Hydrogenation of Ethyne
1. **React Ethyne with Hydrogen**: The first step involves the hydrogenation of ethyne. Ethyne (C2H2) reacts with hydrogen gas (H2) in the presence of a catalyst (such as palladium, platinum, or nickel) to form ethene (C2H4).
- **Reaction**:
\[ \text{C}_2\text{H}_2 + \text{H}_2 \xrightarrow{\text{Catalyst}} \text{C}_2\text{H}_4 \]
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